Unio protensus obtusatus Tapparone Canefri, 1889 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Unionida family Unionidae genus Lamellidens species Lamellidens marginalis Name Homonyms Unio protensus obtusatus Tapparone Canefri, 1889 Unio protensus var. obtusatus Tapparone Canefri, 1889